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21-10-2016 | Original Article | Uitgave 2/2018

Psychological Research 2/2018

Cue-target contingencies modulate voluntary orienting of spatial attention: dissociable effects for speed and accuracy

Tijdschrift:
Psychological Research > Uitgave 2/2018
Auteurs:
Mario Bonato, Matteo Lisi, Sara Pegoraro, Gilles Pourtois
Belangrijke opmerkingen

Electronic supplementary material

The online version of this article (doi:10.​1007/​s00426-016-0818-6) contains supplementary material, which is available to authorized users.
Mario Bonato and Matteo Lisi contributed equally.

Abstract

Voluntary orienting of spatial attention is typically investigated by visually presented directional cues, which are called predictive when they indicate where the target is more likely to appear. In this study, we investigated the nature of the potential link between cue predictivity (the proportion of valid trials) and the strength of the resulting covert orienting of attention. Participants judged the orientation of a unilateral Gabor grating preceded by a centrally presented, non-directional, color cue, arbitrarily prompting a leftwards or rightwards shift of attention. Unknown to them, cue predictivity was manipulated across blocks, whereby the cue was only predictive for either the first or the second half of the experiment. Our results show that the cueing effects were strongly influenced by the change in predictivity. This influence differently emerged in response speed and accuracy. The speed difference between valid and invalid trials was significantly larger when cues were predictive, and the amplitude of this effect was modulated at the single trial level by the recent trial history. Complementary to these findings, accuracy revealed a robust effect of block history and also a different time-course compared with speed, as if it mainly mirrored voluntary processes. These findings, obtained with a new manipulation and using arbitrary non-directional cueing, demonstrate that cue-target contingencies strongly modulate the way attention is deployed in space.

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Extra materiaal
Supplementary material 1 (DOCX 30 kb)
426_2016_818_MOESM1_ESM.docx
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